Knot-tying device for grain-binders.



V E. w. JENKINS. KNOT TYING DEVICE FOR GRAIN BINDERS,

APPLICATION FILED DEC. 29. 1913- Patented Sept. 11, 1917.

4 SHEETSSYHEET lmym;

. E. WfJENKINS.

KNOT TYING DEVI-CE FOR GRAIN BINDERS. APPLICATION FILED 02029. 1913.

1,33%?93u I Patented @ept. 11, 191?.

4 SHEETS-SHEET 2.

59 I YIWIAX r"\((& "1

k & 38 K E. W. JENKINS. KNOT TYING DEVICE-FOR GRAIN BINDERS.

APPLICATION FILED DEC. 29,1913.

Patented Sept. 11, 1917.

-S H E ET 3.

4 SHEETS E. W. JENKINS.

KNOT TYING DEVICE FOR GRAIN BINDERS.

APPLICATION FILED DEC. 29,1913. h wgmfin Patented Sept. 11, 1917.

4 SHEE.TS-SHEET 4.

"Found/e \bundle 4 FFllQ.

EDWARD W. JENKINS, 0F NORRISTOWN, PENNSYLVANIA.

KNOT-TYING DE'ii'ICE FOR GRAIN-BINDERS.

Specifieatio n of Letters Patent.

Patented Sept. 11, 1917.

Application filed December 29, 1913. Serial No. 809,214.

To all whom it may concern: l

Be it known that I, EDWARD W. JENKINS, citizen of the United States, and resident of Norristown, county of Montgomery, and, State of Pennsylvania, have invented an Improvement in Knot-Tying Devices for Grain-Binders, of which the following is a.

specification.

This invention relates to knot tying de-' vices for grain binders or like mechanism, and relates more particularly to an improvement on my prior Patent No. 769,347, grant-- ed September 6, 1904. The object of my present invention is to provide a mechanism. adapted for tying what is generally known. in the art as a Weavers knot and the mechanism herein, embodying the features of novelty, has been devised with. the object of eliminating a large number of parts heretofore deemed necessary in structures of this: kind, also the simplifying of what has here-- tofore been a complicated, intricate, and.

'IHOI'G OI less cumbersome structure 01 the tying of knots, and to provide in place thereof a number of parts so related and. correlated as to produce through a succession of predetermined steps an automatic manipulation of a tying cord whereby the desired. knot is not only formed in the ends ofthe cord, but the bundle loop of the said cord is drawn tight about the article or bundle and so remains taut without danger of becoming loose through handling of the bundle.

My invention embodies in combination a looper bill adapted to receive an oscillatory, substantially rotary movement, together with a novel form of cord gripping or clamping means having in conjunction therewith certain cord guiding, placing and cutting devices. I

It further comprehends a novel form of locking mechanism whereby at certain times the aforesaid knot tying mechanism is rendered inoperative, so that the tying cord may be automatically or otherwise placed aboutthe bundle to be tied, without danger of the parts being incorrectly positioned at the beginning of the knot tying operation.

My invention further consists of a novel form 'of retaining arm for packing the bundle and holding it in assembled condition during the encircling step of the cord about the bundle, as well as during the tying operation, the said retaining arm being auto- .imatically actuated at certain times in the cycle of operations.

It further consists of other novel features 'of construction, all as will be hereinafter :fully set forth.

For the purpose of illustrating my invention, I have shown in the accompanying drawings one form thereof which is at pres- .ent preferred by me, since the same has been :found in practice to give satisfactory and :reliable results, although it is to be under- :stood that the various instrumentalities of a which my invention consists can be variously arranged and organized and that my inventtlon is not limited to the precise arrange- .ment and organlzatlon of these instrumen- -:talities as herein shown and described.

Figure 1 represents a plan of a knot tying mechanism embodying my invention, the :same showing the partsin position to begin :the tying operation;

Fig. 2 represents a side elevation of the :same, with the parts in the same position;

Fig. 3 represents a plan on an enlarged :scale showing the parts occupying the positions of partially completing the tying op- 'eration;

Fig. at represents a section on line X--X of Fig. 1;

Fig. 5 represents a perspective of the lower member of the gripping device;

Fig. 6 represents the cooperating parts of the gripping device showing also certain of the guiding adjuncts;

Figs. 7, 8 and 9 represent, respectively, sections or portions of the gripping device showing the binding material in different positions withrespect to the gripping members;

Fig. 10 represents a perspective of a portion of the gripping device showing the binding material in its position during the final tying action;

Fig. 11 represents a transverse section of the driving shaft of the machine and showing in conjunction therewith a locking device for retaining the knottying device inoperative during a certain interval;

Fig. 12 represents a side elevation partly in section of the knot-tying mechanism and illustrating also the needle mechanism and its adjuncts,

Fig. 13 represents a detail of construction showing a portion of the driving shaft and the relation between the needle arm and the locking mechanism for the knot-tying device;

Fig. 14 represents aside elevation of the looper bill showing tlieposition of the tying cord at the beginning of the knot-tying operation;

Fig. 15 represents the looper bill during the'seco'nd step of tying a knot';

Fig. 16 represents the looper bill in the third position, or after the tying loop has been passed over the bill;

Fig. 17 represents the looper bill after it has passed through the loopand in position to reverse its direction "ofmovement and draw the tying cord through the loop V Fig. 18 represents the looper bill at the beginning of its returninovement"wlien it has drawn a strand of the tying cord about the other strand preparatory to passing the said tying cord through the loop,

Fig. 19 represents the looper bill drawing the free end of the tying cord through-the loop Fig. 20 represents the looper bill 'complet' ing the tying operation and showing also? the cutter adjacent the cut end of the cord Fig. 21 represents the eon'ipleted' knot as tied by the machine. s

1 designates the frame forsupporting the novel knot tying mechanism embodyingfin'y invention, said frame being'fixedly secured by means of ears '2 and set bolts 3 to a rod 1, fixed or suitably supported in any desired manner, it being understoodthat the frame 1 is stationary but may be positioned at any desired angle as occasion demands.

The frame 1, as here shown, is provided with a longitudinally disposed" slot 5, through which the needle arm 6 is adapted to pass during its oscillating movement, be ing controlled in its movement by the rock shaft 7 to which the said needle" arm 6 is keyed or otherwise secured. The needle arm 6 is provided with suitableguidc open ings 8 for properly positioning the tying cord 9 with respect to the knotting mechanism to be presently described. y

10 designates an arm pivoted'at 11 to the needle arm and having an extension 12 car rying a roller 13 which is adapted to con" tact with the surface of a cam 14, the latter being fixed to the aforesaid rock shaft 7 in order to lock the arm 10 in s'uch'a position i that it will hold the material in 'a' compact bundle during the binding of the cord about thelsaid bundle and while the knot is'fbeing tiec.

15 and 15 designate spindles disposed transversely of the frame 1 to form'a sup port for a locking finger 16 of the cam con trolled member '17, it being understood that this member is secured on adjacent ends of g the spindles l5 and'15 which are slidingly mounted upon the fr'ame'l and'maihtained with the U W I V spindlef-BZ which is rotatably mounted inthe 110 e sired knot therein.

further be apparent, by reference to Fig. 11,

that thecam member 17 is provided with suitable earsfi l whieheontact With the rod '75 a and hold the said member from rotating. 11 order to releasetlieliigjlfifrom the.

' locked 'jposit'ioil, tli'eaieedle is I prefer ably providedwith a s id'ef faced Q Whieliat a eertalnlt ime in tliei travel ofthe so needle arm engages the member 17 'and thereby moves the sam e against the ten- @sion of the s'pr1ng' 18 thus removlngfjthet finger 16 from its locking positionto per init releasing thelug and theyarm 20. At the tilndtliediigjlfl is? rleas e d froni' its loeke'd pesitioii the needle aifm 6' liasreached I such' a position that" 'tliefjseeketi formed therein reeeivesthe lug 19 so thatfb'otli the needle arm 'aridithe khotter arm 20 there aftef fniove together. V H 24 designates a guidesu'i'face preferably" formedffintegi al ii 'ith the franie andarranged" substantially c' onceiitriel with the P b m v m ntioi th i ee ilelt; whe e y it forms a support fortheliig'portion' 19of the arm 2 51 e.'pr s eti e i e h arm 20 is pivotallyscure'd todrool; frame f V 25, which in turn is pivotally inoiinted at 26 teens n arer ayoke' QS which," in the'IlDO Ipres'ent'f instance, forms a continiiation of y the frame l andjhas'its opposite arm 29 prjor" vided with arackTSegmentBO. Th e func} tion of the rock frame Q5 is forrn' asap-f portfer both'the cord positioning, gripping I andfcutting e bergas ii ell as the looper bill for tying the required knot.

31 designates a pinionfnormally in mesh" rack 30 and fixedlysecured to a,

frame'25 andoarries upon its end a substan tially helical shapedi looper-bill 33 which is adapted during its oscillatingmovement: to so engage the tynig-eord as to form th'ef'de-g f To the,end desired L have found ,it desirable to provide this looper bill: 33 a finger-"3 4 arranged at by a suitable} point having at ,its extremity'a hook35: adj ateint 'ii hich there is all Xl iension or prong "36 suitablyspaced therefrom so 12 that the cord may enter the ,recess 37. and. thus finally be located back of the hook35.

l The gripping mechanism, as herelshown', I comprises a disk 38, having a post 39 formed integraltherewith and substantially centrally disposed"thereof, which post is "adapted to fit within thebearing sleeve -10,

forming a part of an extension {11 of the frame Q-i, the said parts belng iseeured together'by means of a yielding connection 13 o.

comprising the following construction. 42 designates a screw threaded stud having threaded engagement with the post 39 and having a head 43 which projects beyond the periphery of the bearing 40, in order to form a bearing surface for one end of a spring 44, which seats at its opposite end upon the shoulder 45 of the part 41. 46 designates an annular member adapted to encircle a portion of the stud 42, as well as the head 43 of the aforesaid stud 42, and the latter is prevented from rotation by providing the member 46 with a slot 47 to receive the pin 48, which is fixed to, or forms a part of the head 43. The member 46 preferably forms a part of the extension 41, being secured theretoby a screw 49 and pins 50, these latter maintaining the parts in fixed relation.

51 designates a groove formed in the under side of the extension 41, and partially encircling the post 39, the'center of this latter being coincident with the center of curvature ofthe groove 51. One of the depending lips forming a side of the groove 51 is provided with a cord locking finger 52, while adjacent thereto, and upon the opposite side of the said groove, there is a depending pin 53, the function of which will later be explained. The plate 38, in order to have interfitting relation with the extension 41, isprovided with a plurality of curved flanges 54 and 55, the same being spaced apart and so arranged that the curved flange 54 in certain positions of the parts enters the groove 51 while the adjacent flange 55 extends exterior thereof. The flange 55 is provided with a shoulder 56 which also serves to engage a portion of the tying cord so that two parts thereof are carried into the groove 51 as shown in Fig. 10, thus insuring an effective gripping surface and further securely clamping the cord after a cutting operation. It will here be noted that the yielding spring construction 44, heretofore de scribed, permits the jaws to grip the cord sufficiently tight for all operating purposes, but should there be an undue strain upon the said cord, the two jaws may be forced slightly apart by the yielding of the spring and the cord thus released.

57 designates a knife blade or cutter carried by the plate 38 and so positioned thereon as to be brought into engagement with the cord at'the proper time in the cycle of operations, so that the same is severed after the knot has been completed. 58 designates an ejector finger, also preferably formed integral with the plate 38, and adapted to move into close proximity to the looper bill 33, and cause the cord to be released from the hook 35 at the proper moment should it form a loop and cling to the hook.

In connection with the plate 38, it will be noted that the same is provided with an AIM apertured boss 59, which is adapted to receive a pin 60 of a link'61, the said link being pivoted at 62 to the frame 1, and also having an extension 63 which terminates in a pusher toe 64, the path of movement of which is adjacent to the path of the looper bill 33, and its function is to correctly position the cord within the looper bill at the proper time.

65 designates a guard member, preferably, formed integral with the annular member 46 and having a curved face 66 which is adapted to serve as a guide for the tying cord. It will be understood that the said guard 65 receives a swinging or partial rotary movement with the plate 38 and the parts are so correlated as to effect proper timing thereof with respect to the position of the tying cord.

The operation of the machine will be understood, and may be described as follows, having particular reference to Figs. 1, 2 and 14 to 21 inclusive In Fig. 1 the machine parts and the tying cord are shown at the beginning of the cycle of operations, which when completed have formed a knot of the desired type, the knot in this instance being of that type known as a weavers knot. In Fig. 1 it will be assumed that the free end of the tying cord has been engaged by the gripping devices embodying the parts carried by the plate 38 and the extension 41, while the means for positioning the tying cord in the gripping device will be explained later in the description of the operation. From the gripping device the tying cord, through the movement of the needle arm 6, on its return stroke, has positioned the said cord so that it rests upon the finger 34, passing around the looper bill and as shown in dotted lines in Fig. 1 being carried by the needle arm to the extreme left side of the mechanism in order that the bundle of grain or other material may be effectively packed into place so that upon the return stroke of the needle arm the tying cord will be wrapped tightly about the bundle with the tying cord resting upon the curved supporting surface 66 and crossing in the rear'of the curved guide 67 of the pusher toe 64, whereupon a rotation of the looper bill 33 will cause the latter to pass above this portion of the cord. The above described position of the cord and looper bill is shown in Fig. 14.

it will be understood that, during the positioning of the feed portion of the tying cord, the needle arm 6 is moving upwardly through the opening 5 in the frame 1. and at the moment that the cord has assrnied the position of Fig. 14. the cam of the said arm 6 contacts with the looking lnein her 17, shifting the same along the rod 15 and bringing thelocking lug 16 out of the path of 'niovement of the'looper arm lug 19. As soon as thi's'takes place'the rod is free to move, and since the opening 2 of the needle arm 6 has picked up the lug 19, the two. parts move together, thus causing the frame to swingabout itspivot 26, which movement causes the pinion 31 to rotate, and thus impart a partial rotation to the looper bill The first effect of the movement of the bill is shown in Fig. (15,

where that part of thecord which is engaged by the finger Si is crossed over the feed endof the tying cord to form SllbStdlr tially a figure 8 through the lower or bundle end of which the end of the looper bill is adapted to pass: 111 this Fig. 15, thesaid bill is shown just entering this loop. The looper bill. 33, continuing its movement, now takes the position shown in Fig. 16, with the upper loop of the said figure 8 reversed with respect to its formerposition and looped about the looper bill within the lower or bundle loop. For the sake of clea'rness in describingthis operation I have designated the free end of the tying cord, which is held by the gripping devices, by the reference letter a, and the feeding end of the tying cord by the letter 6, and sinceduring the foregoing operations the end 6 has been held tautby the needle arm in the same position as shown in Fig. 14, a further upward movement of the looperbill will cause the cord to pass within the recess 37, it being guided therein by the curved hook portion 35. The needle arm having now reached the end of its forward stroke, begins the return movement, thereby causing the lever 20 to actuate the parts controlled thereby, so as to reverse the direction of the movement of the looper bill, and its first position is shown in Fig;

1.7, where the hook 35 has grasped the cord adjacent the end Z) preparatory to carrying it down through the loop located upon the looper bill.

Figs. 18 and 19 show the several positions of the cord as the looper bill reverses its movement, and at the completion of this movement the end Z) h as been looped through the small figure 8 loop and the knot is complete except for drawing it taut. As

. 4 soon as the parts have reached this position the plate 38, which has also been swinging about its pivot, has reached the point where the knife blade 57 is in position to cut the end Z2, thus severing the knot portion of the cord so that the bundle may be removed from the machine. It will be apparent that when the end 5 has been severed, it will, through a further movement of the looper bill downward, as shown in Fig. 20, be drawn through the knot loop, thus leaving the completed knot as shown in Fig. 21. In connection with this last step it will be noted that if there is any tendency of the cord to catch in the looper hook and prevent the re into position back of the pusher arm guidemoval of the knot portion, it will be prevented by. the movement of the ejector finger 58 which at this time advances, passes. 1n close proximity to the endof the looper bill, and pushes the cord free.

Going back for a moment, now, to the position of the cord at the time the cutter severs the tied portion, attention is directed to the fact that at this time a portion of the end 6 lies across the plate 38 in front of the flanged shoulder 56, and alined with the groove 51'so that a continuous movement of the plate 38, forces a new portion of the 1 the loop in the knot will be pulled tight or shut bythe" action of the flange 56. It will be noted further that this movement also causes the cord to be drawn closely and taut about the bundle.

The foregoing step is quite animporta'nt one in connection with the tying of the knot, since the stepped flange of the plate 38 causes the tying cord to be held at both ends after the bundle loop has been formed around the'bundle. This action will probably be clearer when it is stated that the free end of the cord isfirstpassed into the groove 51 andheld at two places by the flanged construction, and then as the looper completes the knot, that portion of the cord which is to be severedis then engaged by the flange 56 and pushed into "gripped position within the groove 51: As soon as the severing actionis completed this end of the cord which has just been gripped is, by the movement of the parts, drawn for wardly into the groove 51 and closes the- -loop formed in the knot by the movement of the looper bill. In connection with this completing of the knot it will benoted that bill so that should the cord become looped or improperly caught upon the hook 35, this guard arm 65 will release it, thus leaving the looper bill'free for the next movement, and also permitting the bundle to be removed from the device.

A further function of the guard arm face 65 is to receive the cord during the forward movement of the needle arm and guide it face 67, it being noted that' these two faces at this time are in alinedrelation, and therefore a movement of the arm 67 will carry the cord beneath the finger 68 so that the cord lies in the path of the looper bill and however, as the cord is properly positioned in the looper bill, it will be slipped over the end, of the pusher toe 64 and take the position shown in Fig. 1, whereupon a reverse movement of the arm 63 Willcause its toe 6a to carry the cord over into the path of movement of the flange 54,

Attention is again directed to the employment of the novel binding arm 10, the function of which is to maintain the bundle of material compressed during the knot tying operation, the desirability of ,this

member will be apparent when it is stated that heretofore in practice the needle arm has been utilized as a means to compress the bundle during the tying operation. Where the needle arm is used for such a purpose, it will be apparent that any relaxation of the said arm before the knot is finished results in the bundle loosening and the tying cord is either not tied at all, or tied so loosely as to serve no useful purpose. That the needle arm must thus release the bundle is of course apparent, since it begins its return stroke before the knot is completed. In my novel construction I have provided a means which is automatically actuated and serves to hold the bundle under compression during the entirebinding and tylng operation, and it is therefore HDPOSS IblG for the material to become loosened or dlsplaced before the knot is actually completed. In connection with this construction it will be further noted that the retaining arm 10 is preferably actuated by a cam movement which is so timed as to give the reta ning arm '10 a leadfiover the movement of the needle arm, thereby insuring a successful completion of each bundling and tying oporation. i

It will now be apparent vised a complete unitary structure, simple in construction, effective in operation, and consisting of few parts, all of which are so arranged and combined as to produce the desired knot-tying operation, and while I have shown the apparatus as I have practically constructed it for use, which I have found particularly well adapted for commercial purposes, I do not limit myself to the details or special relative movement of the parts, as my invention is intended broadly to include an oscillatory gripping device embodying as adjuncts thereof certain cutting devices, guards and positioning devices, together with a looper bill mounted for rocking movement, as can readily be understood from the foregoing description. Therefore, while I prefer the construction shown, I do not confine myself to the details, as they may be varied as found most convenient in any special application of my. invention. w l

Having nowdescribed my invention, what that I have de I claim as new and desire to protect by Letters Patent is 1. In a knot-tier, a frame, a cord gripping mechanism comprising an arm pivoted to said frame, a plate carried by said arm and movable with respect thereto, a portion of said plate being adapted to interfit with a portion of said arm to form gripping aws to hold a tying cord, a looper bill mounted for rocking movement adjacent said gripping mechanism, means to properly position said cord with respect to said gripping mechanism and saiddlooper bill, and means to respectively actuate said parts whereby a weavers knot formed in said cord. i

2. In a knot-tier, a frame, a cord gripping mechanism comprising an arm pivoted to said frame, a platecarried by said arm and movable with respect thereto, a portion of said plate being adapted to interfit with a portion of said arm to form gripping jaws to retain a tying cord, means to press said plate and arm together to increase the gripping action, a looper bill mounted for rocking movement adjacent said gripping mechanism, means to properly place said cord with respect to said gripping mechanisnr and said looper bill, and means to respectively actuate said parts whereby a weavers knot is formed in said cord.

3. In a knottier, a frame, a cord gripping mechanism comprising an arm pivoted to said frame, a plate carried by said arm and movable with respect thereto, a portion of said plate being adapted to interfit with a portion of said arm to form gripping jaws to retain a tying cord, yielding means to press said plate and arm together to increase the gripping action, a looper bill mounted for rocking movement adjacent said gripping mechanism, means to properly place said cord with respect to said gripping mechanism and said looper bill, and means to respectively actuate said parts whereby a weavers knot is formed in said cord.

4. In a knot-tier, a frame, a cord gripping mechanism comprising an arm pivoted to said frame, a plate carried by said arm and movable with respect thereto, a portion of said plate being adapted to interfit with a portion of said arm to form gripping jaws to retain a tying cord, a spring compressed between said arm and a portion of said plate to normally increase the pressure of said gripping jaws, a looper bill mounted for rocking movement adjacent said gripping mechanism, means to properly place said cord with respect to said gripping mechanism and said looper bill, and means to respectively actuate said parts whereby a Weavers knot is formed in said cord.

In a knot-tier, a frame, a cord gripping mechanism comprising an arm pivoted to said frame, having an opening therein,'a plate, a pin on saidplate journaled in In a knot-tier, a frame, a. cord -gripsaid opening to provide "relative movement 1 ping mechanism comprising an arm plvoted between said plate and arm, a portion of to said frame, having a groove therein, a said plate being adapted to Intel-fit Wltll a plate mounted on said arm for osclllatory portion of said arm to form gripping a\vs movement with respect thereto, a stepped to retain a tying cord, a spring seated on" flange secured to said plate for engaging a said arm and encirclinga portion of said tying cord at a plurality; of points and arm about said pin, a studthreaded into said adapted to enter said groove and coact there- Pll'l, a head on said stud engaging said with to grip said cordfor a predetermined spring to hold the same normally under comlengtli' of time, means to properly position 'fpression to increase the grippingf action be: said cord with respect to said gripping tween'sai-d jaws, a looper-bill mounted for mechanism, a looper bill mounted for rockrocking movement "ad acent said gripping 111g 1novement-ad acent saldgrlpping mechmechanism, means to properly posltion sald anlsm, and means to respectively actuate cord with respect to said gripping mechanism and said looper bill, and means to respectively actuate said parts wvhereby a weavers knot isformed in said cord.

said parts whereby aiweavers knotis formed in-said cord.

10. In a l -not-tier,- a frame, a cord gripping mechanism comprising an arm piv- 6, In a kn0t-tier, a frame, a cord grip- ,oted to .said fram and having a groove p ng mechanism comprlsmg an arm plvoted' thereln, a" plate Gill'llQCl by sald arm and to said frame and having a groove therein, movable with respect thereto, a flange on a plate carried by said, arm and movable ,said plate adapted during the movement of with respect thereto, a flange on sand plate said plate to enter SELlCl groove to form a ;a dapt'ed during the movement of said plate cord retaining means, means to properly enter said groove to form a cord retaining position-said cord with respect to said grip means, means to properly position said cord ping mechanism, a looper bill mounted for with respect to sa1d gripping mechanism, a rocking movement adJac ent. sa1d. grlp 'img ping mechanism comprising an arm pivoted pi g mechanism mp s an arm looper bill mountedfor-rocking movement mechanism, means to respectively actuate adjacent said gripping mechanism, and sa d parts -whereby a weavers knot 13 'means to respectively actuate said parts" formed. in said cord and a cord guiding whereby a Weavers knot is formed in said guard fixed tosaid arm and P d cord. i japent said looper'bill.

7. In a knot-tier, a frame, a cord grip 11- Ina knot-tier, a frame, a, cord grippivto said frame having a groove therein, a oted to said frame and having a groove plate carried by said arm and movable-with therein, a plate carried by said arm and respect thereto, a steppec flange secured to movable with respect thereto, a flange on said plate and adapted during the movement said plate adapted during the movement position said cord with respect to said grip rockingmovement adjacent said gripping of said plate to enter said groove to form of said, plate to enter said groove to form a gripping jaws for holding said tying cord cordretaining means, means to properly at-aplurahty of points, means to properly, position said cord with respect to said gripping mechan1sm,a looper blll'mounted for rocking movementachacent said gripping, mechanism, a loopenbill mounted for V p ng mechanism, means to respectively actumechanism, and means to respectively actuate said parts'whereby a weavers lgnot is "formed in said cord.

' 8. In a knot-tier, a frame, a cord gripi an arm pivoted tosaid frame and havin'ga groove therein, a plate carried by said ,afrm and movable -withrespect thereto, a stepped flange securedto, said plate and adapted during the movement of said plate to enter said groove to form grlpplng, aws ,for holding said W cl'dat a p rality of' points, yield mg eans for-normally pressing said jaws,

toget1er to increase the gripping action =1 thereof, meansto properly position said '60 cord with respect to =Sflld gripping mechanism, a l ooper bill mounted for rocking movement adjacent said gripping mechan1sm,-'and means to respectively actuate said parts whereby a weaver s knot is formed.

in -said cord.

ate-said parts whereby a weavers knot is formed in said cord, a cord guiding guard 'fiXed to said arm and positioned adjacent said looper'bill, and a cord severing means carried by said plate and adapted to engage ,said cord at a predetermined length. i 12, In a knot-tier, a frame, .a cord gripp ng, mechanism comprising an arm pivoted tosaid frame and having a groove therein, a plate carried by said'arm and movable {with respect thereto, a flange on said plate adapted during the, movement of said plate to, enter said groove to form a cord retainmg means, means, to properly position said cordwith espect to {said gripping mechaa looper bill maunted'ar rocking nism,

movement adjacent said, gripping mechamsm, means to respectively actuate said parts whereby a Weaverslinot is formed in saidcord, a cord guiding guard fixed to said arm and positioned adjacent said looper bill, and means operable by the movement of said plate for carrying said cord into position to be engaged by said looper blll 13. In a knot-tier, a frame, a cord gr1pping mechanism comprising an arm pivoted to said frame and having a groove therein, a plate carried by said arm and movable with respect thereto, a stepped flange on said plate adapted during the movement of said plate to enter said groove to form a cord retaining means, means to properly position said cord with respect to said gripping mechanism, a looper bill mounted for rocking movement adjacent said gripping mechanism, means to respectively actuate said parts whereby a weavers knot is formed in said cord, a cord guiding guard fixed to said arm and positioned adjacent saidlooper bill, and means operable by the movement of said plate for placing said cord in position to be engaged by said stepped flange.

lei. In a knot-tier, a frame, a cord gripping mechanism comprising an arm pivoted to said frame and having a groove therein, a plate carried by said arm and movable with respect thereto, a flange on said plate adapted during the movement of said plate to enter said groove to form a cord retaining means, means to properly position said cord with respect to said gripping mechanism, a looper bill mounted for locking movement adjacent said gripping mechanism, means to respectively actuate said parts whereby a weavers knot is formed in said cord, a cord guiding guard fixed to said arm and positioned adjacent said looper bill, means operable by the movement of said )late for carr in said cord into aosition to be engaged by said looper bill, and means carried by said plate for severing said cord at a predetermined time.

15. In a knot-tier, a frame, a cord gripping mechanism comprising an arm pivoted to 'said frame and having a groove therein, a plate carried by said arm and movable with respect thereto, a steppedflange on said plate adapted during the movement of said plate to enter said groove to form a cord retaining means, means to properly position said cord with respect to said gripping mechanism, a looper bill mounted for rocking movement adjacent said gripping mechanism, means to respectively actuate said parts whereby a weavers knot is formed in said cord, a cord guiding guard fixed to said arm and positioned adjacent said movement, a stepped flange secured to said plate and adapted on the forward movement of said plate to enter said groove to form a gripping means for holding a tying cord, means to hold said cord in said groovesaid cord.

17. In a knot-tier, a frame, a cord gripping mechanism comprising an arm pivoted to said frame and having a groove therein, a plate mounted on said arm for oscillatory movement, a stepped flange secured to said plate and adapted on the forward movement of said plate to enter said groove to form a gripping means for holding a tying cord, a lug depending from said arm adapted to hold said tying cord in said groove during the reverse movement of said plate in the opposite direction, a looper bill mounted for rocking movement adjacent said gripping mechanism, means to properly position said cord with respect to said gripping mechanism and said looper bill, and means to respectively actuate said parts whereby a weavers knot is formed in said cord.

18. In a knot-tier, a frame, a cord gripping mechanism comprising an arm pivoted to said frame andhaving a groove therein, a plate mounted on said arm for oscillatory movement, a stepped flange secured to said plate and adapted on the forward movement of said plate to enter said groove to form a gripping means for holding a tying cord, alug having a face curved away from the entrance end of said groove to allow said tying cord to freely enter said groove but to hold said tying cord in said groove during the reverse movement of said flange, a looper bill mounted for rocking movement adjacent said gripping mechanism, means to properly position said cord with respect to said gripping mechanism and said looper bill, and means to respectively actuate said parts whereby a weavers knot is formed in said cord.

19. In a knot-tier, a frame, a cord gripping mechanism comprising an. arm pivoted to said frame, a plate carried by said arm and movable with respect thereto, a portion of said plate being adapted to interfit with a portion of saidarm to form gripping jaws to hold a tying cord, a looper bill mounted for rocking movement adjacent said gripping mechanism, an operating lever adapted to actuate said gripping mechanism and said looper bill, means to properly position said cord with respect to said gripping mechanism and said looper bill, and means automatically controlled for locking said lever during a. portion of the movement ofv cam automatically operable during, the actu- .said positioning means.

20. In a knot-tier, a frame, a cord ,gripping mechanism comprising an arm pivoted to said frame, a plate carried bysaid arm and movable, withrespect thereto, a portion I of said plate being adapted to intertit with a portion of said arm to form grippingjaws to hold a tying cord, a looper bill mounted for rocking movement ad acent sard gr1p ping mechanism, an operating lever; adapted to actuatesaid gripping mechanismand said looper bill, a locking device for renderlng said lever inoperative, a ,needle arm for properly positioningsaid cord with respect to said gripping mechanism and said looper ation ,of said needle arm and said knot-tying mechanism to shift said retaining arm to a position to cause it to hold the bundle in packed condition andthereafter to hold it in relatively stationaryposition during the advance of the needle in completing, the knot-tying operation. i

2a. In ,a, knottying mechanism, aframe, a needle arm monnted for operation adj acent said frame, meanscarried by, said frame for tying a knot in a bindingcord for a bundle, a pivoted,retaining arm adjacent said needle ,arm, and ,cam means to .shift said retainingarm, into contact with said N bundle and then hold it A stationary to mainbi l: nd means controlled by the mo me ;tain the bundle in packed condition during ot said needle arm for releasing sa d locking device, and means carried by said needle arm for causing said lever to beactuated ,when released.

, 2 1. In a knot-tying mechanism, a frame, I a needlearm mounted. for rocking movement {adjacent said frame, means carried by said frame controlled by said needle arm, for tyinga suitable knot in a cord, means carried by sald needlearm and adapted to maintain a bundle in packed condition during. the time said needle arm is placing said,.cord about said bundle and said tying mechanism is forming a knot in said,cord, and devices for causing the means for maintaining the bundle in packed condition to move forward with the needle during a portion of its movement and then for positively holding said means from further movement whereby the bundle is maintained in packed condition while the needle continues its advance movement for tying the knot.

22. In a knot-tying ,mechanism, aframe,

a needle arm mounted for roclizing movement adjacent said frame, means carried by said framecontrolled by said needle arm for tymg a suitable knot in a cord,a pivoted retaining arm adjacent said needle arm for maintaining the bundle in a packed condition during binding, and means to shift said retaining arm into contact with a bundle to maintain the same in packed Condition during the time said needle arm is ilacing said cord about said bundle and said tying means is forming a knot in said cord, said the time said needle arm continues to advanceand place said cord aboutthe .bundle and during its, cooperation with said tying means to form a knot in saidcord.

25.7.In av knot-tying, mechanism, a cord holder to grasp andhold a cord, comprising a plurality of partshaving two long jaws adapt-ed to fit together and slideadjacent each other, suitablecatches or flange lugs spaced apartnpon said holderfor carrying said, cord into said jaws, a cutter to sever saidcord at a predetermined time, means to reciprocate one j aw with respect to theother to grip and thrust the cut end of saidicord jibetween said ,jaws, andn eans to secure said .cut end,,within said-jaws while the reciprocable jaw, makes its return stroke to grasp the cord ,for. a new end. v26,. In a, knot-tying, mechanism, a cord holder to grasp and hold a, cord, comprising two or more parts having two long .j aws, the one a counterpart of the other, and adapted to eonform and fit together to slide in close proximity, to each other, catches or flange ,lugs suitably spacednpon one of the moving, iolder members and adapted to carry the cordforivardinto saicpjaws, a cutter for severing said cord; at a predetermined time, means to reciprocate oneof said jaws to grip and thrustthecut end. of said cord forward between said-jaws, and means to q secure said cut ,end within said jaws as the means causing the retaining arm to move or support, a cord conveying arm, operaforward with the needle during a portion of its movement and then stopping its for-.

ward movement whereby the ,bundle is maintained in packed COHClltlOIl WllllQ the needle continues its advancemovement for tying the knot.

23. In a knot-tying mechanism, a frame, a needle arm mounted for rocking movement adjacent thereto, means for tying a suitable knot in a cord controlled by the movement of said needle arm, a pivoted retaining arm 6,5 mounted adjacent said needlearm, and a said jawmem loers respect, to thepthen,

- whereby said cord is grasped and fed between said jaw members, and means to retain the cut end of said cord in said jaws while one of said jaws reverses its movement in the formation of the knot.

28. In a knot-tying mechanism, a frame or support for said mechanism, an arm mounted adjacent said support for carrying a cord to said mechanism, a looper mounted upon said support for forming a loop in said cord, a holder and a cutter fixed adjacent said looper to respectively hold and out said cord, said holder comprising a clamping device composed of interfitting members forming two long jaws, a spring to clamp said aws together, catches suitably spaced apart upon said clamping device, means to reciprocate said clamping device to grip and thrust said cord between said jaws, and means to retain the cut end in said clamping device while one portion of said device moves back to grasp said cord for a new end.

In testimony of which invention, I hereunto set my hand.

EDWARD WV. JENKINS.

Witnesses: MIRIAM M. DYSON,

LEILA JENKINS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

, Washington, D. G." 

